GC Analysis of a 7-Component Organochlorine Pesticide Mix in Drinking Water on a 5% Phenyl Column after SPE using Supelclean^™ ENVI^™-18

技术

gas chromatography (GC): suitable
solid phase extraction (SPE): suitable

试验参数

sample preparation: SPE (Solid Phase Extraction)
sample/matrix: drinking water spiked with pesticides
SPE tube/cartridge: Supelclean ENVI-18, 500 mg/6 mL (57064)
condition: 2 x 6 mL hexane:ethyl ether (1:1); 6 mL methanol; 6 mL DI water
sample addition: 250 mL water sample at 10 mL/min
drying: 10 min with vacuum
elution: 2 x 15 mL hexane:ethyl ether (1:1)
eluate post-treatment: concentrate to 2 mL with nitrogen stream
column: 5% Phenyl Polysiloxane, 30 m × 0.25 mm I.D., 0.25 μm (Supelco equivalent, Equity-5, 28089-U)
oven: 150 °C (2 min), 10 °C/min to 275 °C
detector: ECD, 310 °C
carrier gas: helium
injection: 1 μL

适用性

application for SPE

应用

environmental
food and beverages